Duel for Cardia

Duel for Cardia is a two player game which immediately makes me think - this is the kind of game I like to design. Players have the exact same deck of 16 cards, but a hand size of only 5. Every turn you each play a card simultaneously, and the higher number wins a ring. You need to win five rings to win a round, and you play best out of three rounds. Now the twist is in the unique card powers.